coward; scaredy-cat
From Low German Bangbüx(e); analysable as bang (“afraid”) + Büxe, the latter being a rarer variant of Buxe (“trousers, pants”). Compare Angsthase (thought to be an alteration of *Angsthose), Dutch bangebroek, English shit one's pants.
Improve your pronunciation
Practice speaking and memorizing "Bangbüxe" and many other words and sentences in German.